Intermittent feeding device



Dec, 4, 1928.

E. M. BRACKETT ET AL INTERMITTENT FEEDING DEVICE 4 sheets-sheet Filed May 20. 1926 INVENTOR Edward M Ema/1656 ATTORN EY Dec, 4, 1928.

E. M.- BRACKETT ET AL INTERMITTENT FEEDING DEVICE Filed May 20, 1926 4 Sheets-Sheet 2 BNVENTOR fan am MBmc/Ieti AATOiZEY I 0/70 :4 M570 fiett JE m m g y a W i I. g 1 w D N M Dec 4, 1928. 1,694,202

E. M. BRAcKE'n" ET AL INTERMITTENT FEEDING DEVICE Filed May 20, 1926 4 Sheets-Sheet 4 ATTORNEY Patented Deco EDWARD M. BRACLZETT AND FEED Ii'i. BRACKETT, 0E TOPEKA, KANSAS.

XETERMITTENT FEE.

Application filed. May :20,

Our invention relates to an, intermittent feeding device and particularly to such a de vice in which the intervals between feeding operations may be varied.

In certain machines such as stripping n1achines or other machines used for applying strips adjacent edges of sheets, the sheets are preferably fed into the niaciiine intermittently and the interval between feeding operations is preferably varied in accordance with the size or sheet to be operated on. It is, accordingly, a purpose of our invention to provide feeding means of the above mentioned character in which the period between feeding operations can be varied and to provide improved clutch mechanism whereby such a feeding mechanism can be interi'nittcntly opera ed and the period between the begiir ning of each feeding; operation and. t sue cceding' feeding operation can be v adjustment of said his associated with the clutch mechanism.

More particularly it is a pe vent" 1 to provide feeding; .n' a lQlJlPlOCllllO n'ieniber, said reciprocablc nien'ilf tion through prev. :lfor ii-rturniii the point, and means oi? movement in oi our 211'- ns cenr rising ior inc-vii the interwar Je the reciprocable nieniber. 'lhe :idjrs means profits-ably comprises a member r ing; at a coi'istant S 'NJQLi, which a nioveinon t-initiating member moon-.1. [late therewith and means for ad usting arc through which the rotatable i'nenibcrs 1=ctote together before initiating niovciiiiisit t the feeding nieans in. a i'eediirir direi.

lf-ipcciiically, the rotatable member t tiatcs the feeding inoven'ient by art clutch asr'iociatcd with a d e member to c nect the reciprocable means with the drive member, is free to rotate independently of the driven member, rotating at a substantially constant speed and is adapted to be connected therewith at such tiin s and in such a manner as to vary the distance that the driven in inber rotating at a constant speed and the nieinbe. actuatingthe clutch to initiate the feeding n'iowinent rotate together.

It is a il'urthcr purpose of: the invention to provide new and improved clutch mechanism for obtaining the intermittent movement whereby the reciprocable member is driven in one direction by beingconnected by the IillG'r DEVICE.

1925. Serial No. 110,579.

clutch the for the her associated with the rcciprocable member and said rotatable incn'iber and clutch member also rotating in the reverse direction with the reciprocable member when the same is retracted.

Other objects and advantages of the inven tion will appear as the descri tion of the accompanying drawings proceeds. However, we desire to have it distinctly understood that we do not intend to limit our selves to the exact details shown or described, but that we intend to include as part oi our invention all such obvious changes and modifications of parts as would occur to a person skilled in this art and as would fall within the scope of the claims.

in the drawings:

Fig. 1 is a per pective view of a stripping machine embodying our improved feeding in ans.

2 is a fragmentary plan view, partly broken away, thereof.

3 is a it'raginentary section taken on oe 3-3, Fig. 1.

Fig, 4 is a view partly in section and partly in elevation of the adjusting member and dial associated therewith.

l A. 5 is a perspective View, with one of the hearings removed, oi? the improved clutch .ch actuating mechanism used in conwith our improved feeding device. (5 is section. taken on the line 6-6 with a driving member and moved in reverse direction by any suitable means retracting the same to starting position, clutch rotating; with the rotatable nienr i a longitudinal sectional view of the clutch inecl'ianisin and clutch actuating iiiei'nber.

1;. 8 is a scctiontaken on the line 8-8 of o 'i'.

Fig. 9 is a perspective View 01"- the rotatable member reciprocating the feeding means and the coin associated therewith.

Fig. 10 is a section taken on the line l010 of Fi 7, showing the clutch in an unlatched position.

11 is a similar view, showing the clutch in a latched. position.

12 is a perspective view of certain portions of the clutch mechanism separated, associated with the clutch actuating means.

Fig. 13 is a fragmentary, longitudinal, sectional view thereof on an enlarged scale, and

Fig. 14 is a perspective view of the driving clutch operating means disassembled from the clutch.

Referring in detail to the drawings:

Our improved feeding mechanism is shown as being applied to a machine 10 which may be a stripping machine, that is, a machine for applying strips of binding material to sheets of paper or similar sheet material, to connect the same together. In a machine of this character the sheets are placed in feed ing channels 11 provided between the gait" 12 and the slotted bottom members 13 and in front of the lingers 1-1 operating in the slots so that said lingers 14 in moving to the h as shown in Fig. 1, will feed the sheets in pairs into the machine. While it is obvious that while sheets are referred to, any object whether in pairs or singly may be fed in this manner, provided an internritteir feed is desired.

In the form of the invention shown the fingers 1e are mounted upon transversely extending member 15 that is ca fed by a head 16 slidably mounted upon the guide rod 17 depending from the brackets 18 which mounted in any suitable manner upon the machine 10.

The member 16 is mounted to reciprocate with a reciprocable rod-like member 19 that is preferably hollow as shown Fig. 2 and which is provided with a suitable guide member 20 through which the same extends, the guide member being secured in any suitable manner to the machine 10. A tension spring 21 is mounted within the bore of the member 19, being secured to a cross pin 22 or any other suitable means at one end thereof and having the other end thereof secured in an eye 23 provided on one end of the elongated hook 24 having a hook portion 25 that is adapted to be anchored in a suitable opening in the machine 10 for holding the same in position, the machine 10 being provided with an opening 26 in the framework thereof through which the spring 21 extends.

The rod-like member 19 is provided with a pair of cars 27 at the other end thereof to which the rack 28 secured by means of a pin or other securing member 29. Meshing with the rack 28 is a gear 80 which is rounted on a shaft 31 and is normally free to rotate thereon, a sprocket wheel 32 being mounted on said shaft to rotate therewith, a

sprocket chain 33 operating over said sprocket wheel and over the sprocket wheel 34.

The sprocket wheel 34 is mounted to rotate with a shaft 35 which is driven in a constant direction and at substantially constant speed in any suitable manner, a gear 36 being mounted on the shaft 31 to rotate therewith. The gear 36, referring now to Fig. 7, meshes with a gear 87 which is mounted to rotate freely upon the shaft 38, the shaft 31 being mounted in suitable hearings in the brackets and it) and the shaft 8 having a reduced portion 41 terminating in a threaded end 4:2 with which the nut 48 engages to clamp the same in position on the lower end of the bracket 39.

Formed ii tegraliy with the gear or so as to rotate therewith at all. imes, a drumoorcs m to in- A cam membe grooves 445 and transverse crease the resiliencv therco' is also freely, rotatabl wanted upon the aft 38 beta -.n the iian e i9 therei'in and c gear 37, the expansibie .ember being soured to the member 18 by any suitaoie securing means extending tln-oughthe opengement 51 provided on the .il us pansible member chine in desired manner as by securing Thus wii the same to lug 58 as snown in hi 1. the flexible member 55 Bring 57 tend to rotate the member clockwise direction as ind broken-lined arrow shown in The shaft 38 which stati a provided with tubular end portion in which is seated a compression spring 61) that bears against a cross pin 3 is movable in. the slotprovided in re ello'w end 59 of the shaft and w ich secures the sleeve (33 to shaft for slidin mo w thereon but holding the same .r Men. The rl e 63 bears an inst a roll r (i i: which has axle 65 mounted bctwc (it; in the end of the pin i slide through an opening (38 the . member Ler provided if receiving the rthermore 7 proin s 48, the member 28 being with a concave recess 69 o roller 64-. The pin 6 in vided with a cross bar or cross pr with the free ends of the t of whic i s provided with slot 72 which the reduced shank T3 of t e o together by means of the p and having right angular ci adapted to pry the ends of member -5 apart as the fr e ends or x are spread by engagement of the cross pin 70 therewith. The levers are held in alignment with the cross pin due to the fact that the cross pin and said levers rest in a slot 76 provided in the member 48, whereby the movements thereof are guided.

The sleeve 08 is provided with a flange 77 that seats in the groove 7'? provided in the flanged stop collar 78 which is provided with a laterally extending stop finger 70 which the lug 52 is adapted to engage to limit th rotative movement of the member 48 due to the action of the spring 57. The stop collar 7 8 is provided with a groove 80 for receiving a cable or other flexible member 81 which may extend around the same any desired number of 17111108 to obtain the required amount oi friction thereon so that the member 80 will move along with the cable 81 without slippage. The other end of the cable 81 extends around a pulley or drum 82 formed on the hub of the adjusting member 83 which is provided with suitable graduations St on the surtta ce thereot to indicate the position of the same and with a. suitable knurled surface to facilitate rotating the same. The member 83 is mounted upon a bolt ike member 85 carried by the b "acket 80 depending rem the machine 10, which is provided with a clau'iping member 8'? having a handle 88 whereb v the adjustin means can be clamped in any desired adju d position. Thus by actuating the member 83, the stop ling r 1'9 can be moved to any desired position around the shaft 88 to obtain any required position for the lug 52 within the requirements o1 the machine.

The sprocket wheel 32 is mounted. upon a hub 89 provided on the. clutch n'iember which is pinned to the shaft 31 by means of the pin 91, the sprocket 32 being secured to the enlarged portion 02 oil? the clutch member 90 by means of the rivets 02-3. 'llhus the sprocket 32 and clutch member 90 are mounted to retate together and with the shaft 81. The clutch member 90 is made in the form of a drum, havin a bore within which the e pansible member 9 1 is mounted.

The nzpansible member 0% is made quite similar in construction to the member 45 and has the rectangular member l'nountcd in the .ce b0 bet eon the ends thereof at the split therein. whereby the member 041 may be eupanded the same having a normal tendency to contract to such a size 1211103 L 90. he ends of the member 0st are enlarged as shown at 97 to provide bearing portions for the cam member 05, the member 941 being mounted upon a pin 98 proje ting from the gear which ext nds through an opening in an inwardly extending car on the member 94:, correspondi 11' to the opening in the ear 51 ot the clutch l5.

Suitable means tor operating the clutch comprising the members 94 and 90 is provided, and comprises a lever 101 having an aperture 09 receiving the pin 98 to pivot the lever, and which is provided with an opening 102 through which the pin 103 provided on the gear 50 extends to limit the movement 01' the lever 101, the pin being of considerably less diameter than the opening to permit play of the lever. The lever 101 is provided with a cam portion 10-1 with which the cam face 53 on the member 52 is adapted to engage, and with. a lug or projection 105 with which the proj ct-ion 52 is adapted to engage to move the lever 101 from the position shown in Fig. 10 to that shown in Fig. 11. The lever 101 is il urther provided with a locking projection 100 that is adapted to engage with a shoulder 108 on a latch 10? pivoted on a pin 10'? on the gear 30 and engaging with the shoulder 108 formed on the latch 10?, the latch being provided with a coil spring 109 hooked through a suitable eye in the same and extending at its other end around a pin 110 on gear 30 so that the spring 109 tends to hold the latch 107 in engagement with the locking projection 100 on the lever 101.

The lever 101 is provided with a rearward projection 111 which is bifurcated as shown in Fig. 1 1 and which has pivotally mounted iZl'lGlGlJGtWQGD on the pivot pin 112 a at-shaped arm 113, the transversely extending portion of which is provided with openthrough which the rod-like members 11 1 slidably extend, the rod-like members 114 beingprovided with heads 115 between which and said transversely extending portions of the member 113 the compression springs 116 are mounted. The members 114i are screw threadedly engaged. in a cross head portion 117 on the pivotally mounted block 118 which is supported. on a pivot pin 110 nounted between the bilur :ated end portions 120 oi the lever 121. The lever 121 is pivotally mounted upon a suitable pivot pin 122 projecting from the gear 30 and rigidly can rics the cam member 95 thereon at the pivoted end thereof.

It will accordingly be seen that when the lever 101 is swung to the position shown in Fig. 11 the lever 121 will be swung to the position shown in l ig. 11, causing the cam member 05 to move to such a position as to spread the expansible member 94, thus engaging the clutch member 9% with the clutch member 90 and causing the gear 30 to rotate with the shaft 31. The rotation is in a counter-clockwise direction as shown in Figs. 1, 8. 10 and 11, causing the rack 28 to be moved to the left in Fig. 1. The rack 28 is provided with flanges 123 that engage in the undercut grooves 121 provided with the detachable flange members 125 to guide the movements thereof. The gear 80 is provided with teeth 126 which extend only part of the distance around the same, a portion of the gear 12? being blank, as will be clear from the drawings, and the provision of teeth around the entire gear being unnecessary as will be obvious as the desc 'iption proceeds.

The latch member 10 7 is provided with an outwardly projecting car 128 which enga es with the stationary earn 129 provided on the framework of the machine after the gear has rotated through a suitable arc to move the rack the necessary distance to perform the feeding operation of the lingers 1d and when this occurs the latch 107 is swung around in a clockwise direction to disengage the projection from the shoulder 10S and release the lever 101 which then swings around to the position shown in Fig. 10 due tothe spring action of the member 9% tendin to throw the cam 05 around to the position shown in Fig. 10.

Vhen the erroansible memoer 94 is released from the member 90 the S0 is free to revolve on the shaft 31 and rotated in a clockwise direction by the action of the spring 21 which moves the rack 52 back until the end of the member 19 engage. with the wall of the frame at the opening 20. This causes the memberS-l and the clutch actuating mech anism actuated by the l ver 101 to rotate as a whole around the shaft 31, bringing the member 105 back .to the position shown in Fig. 10 when it is in position to be eng c erl by the member 52. Mounted on the gear 5% to rotate therewith is a cam member which has the low portion 131 and the high portion 132. The cam member maybe formed integrally with the gear or made so as to rotate therewith in any other suitable manner. A pawl 133 is mounted on the frame of the machine 10 in such a position that the same may be engaged by the high portion 132 of the cam to swing the s ne in a clockwise direction. as viewed in Fig. 8, around its pivot 134:. The rear end of the pawl has pivotally connected therewith a ink or rod 135 which passes through a flattened car 136 on the end of the crank 137. Pinned on the transversely extending portion 138 of the crank 137 is a yoke 139 having pins 140 thereon projecting into the groove 14:1 provided on the collar 63, the crank portion 138 extending through ears 142 projecting downwardly and. laterally from the bracket 1% secured to the hollow end 59 of the shaft 38 by means of the bolt 14A, the bolt 14% also acting to compress the spring (30 in the bore of the hollow portion 59 of the shaft 38. Thus when the pawl is swung downwardly on the bevelled end thereof or clockwise, the rear end thereof *ill move upwardly, pulling upwardly on the rod 135 and swinging the crank 1'37 around so as to swing the yoke outwardly toward the bracket 143, thus causing the member 77 to disengage the roller and allowing the levers 71 to move toward each otheiythus swinging the same aroundto the position shown in Fig. 1 wl'rereupon the member contracts to disengage the member 48 from the gear 37. The cam reaches such a position that the high portion 132 thereof engages with the pawl 133 after the member 52 has engaget with the projection 105. As soon a his occurs, the spring 57 will return the m4. oer 4:8 to the position shown in Fi 10, with the projection 52 engaging with the stop arm 79.

A compression spring 1&5 surrounds the rod 135 and is mounted between the washer 146 engaging against the cotter pin 147 on the rod and the flat 136 of the lever 13? to compensate for any variation in the distance liietwecn the llZMiTG-DGCl end 136 of the member 187 and the opening in the pawl receiving the hooked end of the rod 135 when the pawl returns to its original positionand the member 63 moves toward the roller (54-. under influence of the spring 60, whereupon the clutch member il) will be expanded to cause the member 4:8 to rotate with the gear 37.

As the gear 37 rotates at substantiall constant speed, the position of the stop 111C111- ber 79 will determine the interval that is consumed in the movement of the lug F 2 on the member 18 from its retracted position. to the position when it engages with the projection 105 on the lever 1.01. The end of the cam portion 132 is reached at such a time that the projection 128 on the latch 107 will have been engaged by the stationary cam 129 prior to the time when the member 52 reaches a position to engage with the projection 105 on the lever 1.01, and accordingly the gear 30 will always have been returned to the position shown in Fig. 10 before ,the projection 52 has reached the position to actuate the lever 101 to connect the clutchmembers 00 anl 94: together to rotate as a unit. As the position of the stop member 79 determined by adjustment of the n'icmber 03, the interval between the times when the rotation of ti e gear 30 with the sha it 31 and accordingly the feeding movements of the miunbers 14 we begun, may be adjusted by adj ustment of the member 83 by means of the dial 8% thereon. Tans, while the speed of feeding and the speed at which return of the feeding means takes place is not varied, the interval between feeding movements is varied by adjustment of the member 83.

In order to cushion the shock of the member 10 engaging with the frame of the machine under the action of the spring 21, a bracket 149 is provided on the member 19 which is connected through the link 150 in the lever 151 with a fluid check member 1532 which operates in a similar manner to a door check or similar device to slow down and cushion the movement of the member 10 as it reaches the end thereof.

It will be obvious that if itis-desired t0 ill halt the feeding action of the feeding device, all that is necessary is to unhook the hook 25, releasing the tension on the spring 21. its the clntcn member controlling the feeding operation will then. stop with the latch re leased and will. not be returned to such a position that the parts can be reset to again connect the clutcn men'ibers to rotate together, the feeding operation will stop.

Assuming the parts to be mmstrm-tml and assembled as described, the operation is as follows:

W hen power is applied to the drive shaft 85, the shaft 31 is rotated counter-cloclrwise, carrying; the 36 with it and rotating the gear 37 clockwise. There being a normal tendency of the clutch (i5 to engage the drum 4t L because oi. e tension of spring); urging the sleeve 63 against the roller on the pin 67 to spread the arms 71 and open the clutch 15 to e'ri p rel ati on with the drum, the drum lk is rotated clockwise synchronously with the gear 37. ltotation oi the drum carries its lug 52 to (engagement with the lug" 105 onv the lever 101 pivotally mounted. on the gear wheel 80, which latter is freely rotataile on the shactt 31; rocking the levers 101 and 121 to cam the expansible clutch to locking engagement with the clutch member 90 tlXGtjl to the shatt 31, so that the clutch 90 and gear wheel. 30 will rotate counter-cloclnvise with the s ft 31, the lever 101 then b :1 held in pOSltl for retaining the lo in relation of the clutch members by the l .h 10?. Conr-:1oquently, while the parts are in this relation, the gear wheel 30 operates on the rack 28 to draw the rack toward the left, in Fig. l, and against the tension of the spring 21.

Immediately upon initiation of the driving travel of gear 30, the earn 132 on gear 30 en gages the pawl 132%, rocking the pawl, raisi rod 135, rocking the crank 13? and smrtr the sleeve (33 to relieve pressure on the clutch. 4:5 and releasing the cam member -il-S so that movement of the gear wheel 37 is interrupted. immediately upon its release, the can]. member 41-8 is returned counter-clockwise until lug 52 engages the stop linger 79 on. the collar 78. The gear 80 continues to revolve until the extension 1 S of latch 16? cngat g'eti the lined cam 12%) on the frame of the machine, roclring the latch to release over 1531 which then auto! a'cally re turned to initial position, the clutch bl.

'llhe cam. 13?, is of s ;.llicient extent to hold the pawl. and retain the clutch 41o out of ene ement with drum 1 until the gear mechan. m has completed active phase. the completion of such phase, the extension 128 engages the fined cam 129 on the machine crank, rochi the latch to release lever 101 and gear wheel 30 so that the gear wheel 80 a' in becomes inactive.

the cam 132 rides off of the pawl 133, roleasing the crank 137 so that the clutch 94 may again become active to connect the gear wheels through the lever 'mechanism heretofore described, so that the operation may be repeated, the rack 28 having been returned to initial position by the spring 121 immediately upon release of the gear wheel 30, so that it may again be reciprocated th rough the operation of the gear mechanism.

lly a dj ustment of the stop finger 79 through the cable 81 from the adjusting member 83, the extent of reciprocation of the rack may be controlled. to limit its travel to an extent suiiicicnt for feeding sheets of different cimensions.

What we claim and desire to secure by Letters Patent is:

1. lln a device of the character described, a rotatable member for moving a reciprocable member in one direction, means for intermittently rotating said rotatable member, comprising a constantly rotating member, a clutch device adapted to connect said constantly rotating member with said rotatable member, means actuating said clutch to con nect said rotatable member with said constantly rotating member, means actuating said clutch to disconnect said members and means for adjusting; said first mentioned actuatingmeans to vary the interval between the aetuations of said clutch to connect said rotatable member with the constantly rotatmember.

2. In a device of the character described, feeding" means comprising a rotatable member, and means for intermittently rotating said rotatable member in opposite directions, comprising a constantly rotating' member for rotating; the same in one direction, returning means for rotating the same in the opposite direction, a clutch device adapted to connect said constantly rotating member with said rotatable member, means actuating said clutch to connect said members, means actuating said clutch to disconnect said member, and means for adjusting said first mentioned actuating means to vary the interval between the actnations of said clutch to connect said members.

In a device of the character described, feeding means comprising a rotatable member and means for intermittently rotating san atable member in opposite directlons,

members, said first mentioned actuating means comprising a driving member rotatins at a substantially constant speed, a rotatable clutch actuating member and means connecting said actuating member with said driving member to rotate the same in unison.

4. In a device of the character described, feeding means comprising a rotatable member, and means for intermittently rotating said rotatable member in opposite directions, comprising a constantly rotating member for rotating the same in one direction, returning means for rotating the same in the opposite direction, a clutch device adapted to connect said constantly rotating member with said rotatable member, means actuating said clutch to connect said members, means actuating said clutch to disconnect said members, said first mentioned actuating means compris ing a driving member rotating at a substantially constant speed, a rotatable clutch actuating member and means connecting said actuating member with said driving member to rotate the same in unison and disconnecting said actuating member from said driving member, means to retract said actua member and adjustable means to r limi retractible movement of said actuating member to adjust the interval between act-nations ot' the clutch to connect said constantly rotating member with said intermittently rotating member.

5. In a device of the character described, a rotatable driving member, a member 0 be intermittently rotated thereby in one direction, means for rotating said last membethe opposite directioon when free of said driving mei'nber, clutch means actuat d by said driving member to connect said members together to ro ate in unison and means for adjusting the intervals between connecting actuations of said clutch means.

6; In a device of the character described, a rotatable driving member, a member to be intermittently rotated thereby in one direction, means for rotating said last member in the opposite direction when of said driving member, clutch means actuated by said driving member to connect said members together to rotate in unison, fixed means actuating said clutch means to disconnect said members, and means for adjusting the interval between connecting actuations of said clutch means.

7. In a device of the character described, a rotatable driving member, a member to be lntermittently rotated thereby in one direction, means for rotating said last member in the opposite direction when free of said driving member, clutch means actuated by said driving member to connect said members together to rotate in unison, and means for adjusting the interval between connecting actuations of saidclutch means, said intermittently rotated member rotating through substantially the same are for all adjustments of said last mentioned means.

8. in a device of the character described, means for moving a member in a :leeding direction through a predetermined distance, means for adjusting the initiation of movement of said moving means in a feeding direction. to vary the interval between feeding movements oi said moving member, comprising a mcn'lber rotating at substantially a con.- s t peed, a feed movement initiating member rotatable therewith and means for adjusting the are through which said rotatable members rotate together before said initiating member reaches teed movement initiating position.

9. In a device of the character described, f eding means comprising a reciprocable niber, means for moving said member in a lcedi direction through a predetermined distance, resilient means for returning said member to a oredetermined point and means for adjusting tl iation movement in feeding circction (O vary the interval betleeding movements oi said reciprocable member.

10. in a device of 2 character described, feed ng means comprising a reciprocable men moving member in a lecdin directi .1 a predetermined distance at subst t ntspeed, and means tor adj movement oil? said in in a feeding direction to vary th .etween feeding moven'ients of ber, comprising a member rotating v consi ant speed, a feed move- I member tat-able therewith for adjusting the are through bio mcn'ibers rotate totiating n'iember reaches ting; position. he character described, memb r, a member driven thereby ro :esub. initially at a constant L, an intermittently rotatable member, clutch means adapted to connect and disconn ect said driving member with said intermittently rotatable member, means for retracting intermittently rotatable member when disconnected from said driving member, a rotatable clutch actuating member adapted to rotate with said driven member aim adjust able means determining the are through which said actuating member rotates with said driven member before actuating said clutch to connect the intermittently rotatable member with said driving member.

12. In a device of the character described. a rotatable driving member, a member driven thereby to rotate substantially at a constant speed, an intermittently rotatable member, clutch means adapted to connect and disconnect said driving member with said intermittently rotatable member, means for retracting said intermittently rotatable member when ill) disconnected from said driving member, a r0- tatable clutch actuating member adaptedto r0- tate with said driven member, positively op erating means connecting and disconnecting said actuating member and said driven 1nember, means for reversely rotating said actuating member when disconnected from said driven member and adjustable means for limiting the reverse rotation thereo't.

1.3. In a device oi the character described, a rotatable driving member, a member driven thereby to rotate substantially at a constant speed, an intermittently rotatable member, clutch means adapted to connect and discon neet said driving member with said intermittently rotatable member, said clutch means rotating with said intermittently rotatable member, means for rotating said intermittently rotatable member when disconnected from said driving member, a rotatable clutch actuating member adapted to rotate with said driven member and adjustable means determining the are through which said actuating member rotates with said driven member before actuating said clutch to connect the in termittently rotatable member with said driving member.

14. In a device of the character described, a rotatable driving member, a member driven thereby to rotate substantially at a constant speed, an intermittently rotatable member, clutch means adapted to connect and disconnect said driving member with said intermittently rotatable member, said clutch means rotating with said intermittently rotatable member, a member on said clutch means for moving the same to connecting position, a rotatable member movable into engagement therewith to actuate the same and means for adjusting said rotatable member to determine the interval betweenconnecting actuations of said clutch means.

15. In a device of the character described, a rotatable driving men'iber, a member driven thereby to rotate substantially at a constant speed, an intermittently rotatable member, clutch means adapted to connect and disconnect said driving member with said intermittently rotatable member, said clutch means rotating with said intermittently rotatable member, a member on said clutch means for releasing the same, a member in the path of rotation thereot engaging therewith to actuate the same to release said clutch means, and means retracting said intermittently rotatable member to its initial position.

16. in a device or the character described, a rotatable driving member, a member driven thereby to rotate substantially at a constant speed, an intermittently rotatable member, clutch means adapted to connect and disconneet said driving member with said intermittently rotatable member, said clutch means rotating with said intermittently rotatable member, a member on said clutch means for releasing the same, a member on said clutch means for moving the same to connecting position, a rotatable member having means movable into engagement therewith, and means retracting said intermittently rotatable memher to its initial position with said member for moving the clutch means into connecting position in the path or the means on the last mentioned rotatable member.

17. Ina device of the character described, a rotatable driving member, a member driven thereby to rotate substantially at a constant speed, an intermittently rotatable member, clutch means adapted to connect and disconnect said driving member with said intermittently rotatable member, said clutch means rotating with said intermittently rotatable member, a member on said clutch means for releasing the same, a member on said clutch means for moving the same to connecting positi on, a rotatable member having means movable into engagement therewith, and means retracting said intermittently rotatable member to its initial position with said member for moving the clutch means into connecting position in the path of the means on the last mentioned rotatable member, said last mentioned rotatable member being adjustable to vary the interval between connecting actuations of said clutch means.

In testimony whereof we affix our signatures.

nnwann M. BRACKETT. rain) M. BBACKETT. 

